Gear boxs oil

[sonny198]

Hello iv just bought gl5 80w/90 oil for my 4speed box is this right??? And could any one tell me how many litres it takes to fill up
Many thanks sonny

[Aidan]

GL4
4 litres

[California Dreamin]

If you can find 75W90 in a GL4 (Comma sell it) otherwise an 80W90 GL4.
The slightly thinner oil improves gear shifting from cold.

Martin

[sonny198]

Ok Martin thanks

[phil_b]

Hi,

The reason for not using the newer GL5 you have bought is because it contains additives which can damage the soft metal components within the gearbox. I initially made the same mistake as you but changed to the correct spec as soon as I found out. Replacing it with the correct oil is alot cheaper than a gearbox rebuild!

Wilkinsons usually sell the GL4 (Comma) at a good price

[sonny198]

Okay so you recon take the gl5 out as I only just put it in and go for the gl4 75/90 ??

[sonny198]

I can't find gl4 75/90
I found ss80 is that any good ??

[phil_b]

Yes, 80/90 GL4 will be fine, its what I have in mine. First to second change from a frosty start can sometimes be a bit stiff/slow but after that its fine.